RHENIUM RECOVERY METHOD FROM SUPERALLOY AND RELATED METHOD

PROBLEM TO BE SOLVED: To provide a method for recovering rhenium from rhenium-containing superalloy scrap, wherein the superalloy is usually a nickel-based superalloy. SOLUTION: A method for recovering the rhenium from the rhenium-containing superalloy scrap includes the steps of forming an oxidatio...

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Hauptverfasser:	MILLER JOSHUA L, DASAN BIJU, PALANISAMY BARATH, AJDELSZTAJIN LEONARDO, LIPKIN DON MARK, SAMPATH SRINIDHI
Format:	Patent
Sprache:	eng
Schlagworte:	CHEMISTRY COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSESC01D OR C01F FERROUS OR NON-FERROUS ALLOYS INORGANIC CHEMISTRY METALLURGY PRETREATMENT OF RAW MATERIALS PRODUCTION AND REFINING OF METALS TREATMENT OF ALLOYS OR NON-FERROUS METALS
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Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To provide a method for recovering rhenium from rhenium-containing superalloy scrap, wherein the superalloy is usually a nickel-based superalloy. SOLUTION: A method for recovering the rhenium from the rhenium-containing superalloy scrap includes the steps of forming an oxidation feedstock of flaky form from the superalloy scrap 30 and oxidizing the oxidation feedstock to convert rhenium into a volatile rhenium oxide. The oxidation feedstock is made flaky form by increasing the surface area of the superalloy scrap. The nickel-based superalloy may contain about 1-10 wt.% rhenium. COPYRIGHT: (C)2011,JPO&INPIT